Permits are pulled before work begins and then
inspected by the county. A contractor who files them is working
inside a system with an inspector in it, which is what unpermitted
work avoids.
What the permits show
Of the permits we observed, 100% are HVAC work.
HVAC · 6
Licensed as
Master Plumber and Gas Fitter, Maryland HVACR Contractor
Observed working in
Marriottsville, Sykesville, Ellicott City and 1 more
License numbers
20020001600, 05020012612
Recent work
-
Heat pump install
July 2025 · Howard County
Replace heat pump system.
-
Furnace install
June 2025 · Howard County
Install a gas furnace in place of the air handler. Propane line to be run by propane company.
-
Gas water heater replacement
January 2025 · Howard County
SFD/Install a Columbia gas fired hot water boiler.- replacement Install a gas water heater- replacement.
-
Furnace replacement
October 2024 · Howard County
Replace gas furnace and AC system. Basement location
Licensing
-
Master Plumber and Gas Fitter
Issued by Maryland Board of Plumbing.
Verify
-
Maryland HVACR Contractor
Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration.
Verify
Towns we observed them working in
MarriottsvilleSykesvilleEllicott CityWoodstock
We hold permit records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC.
Work anywhere else is not missing from this contractor's record, it
is outside what we cover.
What this page is, and is not
- Howard County: 6 permits observed, from records beginning August 2021.
This page shows permits we observed in county records.
Our observation is not complete: work done before those dates, in
counties we do not cover, or on filings that name no contractor does
not appear here. A contractor's real work is almost always
greater than what we observed, and absence of a permit on this page
does not mean the work was not done or not permitted.
We currently hold records for
Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC; see permit
coverage for what that includes.
Common questions
- Does a permit record mean this contractor is licensed?
- County permit records list FARNEN AND DERMER, INC under
Master Plumber and Gas Fitter, Maryland HVACR Contractor.
Check current standing with the issuing body before hiring.
- Why do some contractors show more permits than others?
- Counties began publishing at different times and describe
contractors differently, so the number reflects what we observed
as much as what the contractor did. It is not a ranking.
- What should I still ask for?
- Proof of insurance, a written contract, and the license number
for the trade being performed. A permit record is a starting
point, not a substitute for either.
Other HVAC contractors in Howard County